The Metamorphic Petrology of Central Queen Maud Land - A Distinct Geologic Province in East Antarctica

莫德皇后地中部的变质岩石学 - 东南极洲一个独特的地质省

• 批准号: 8815863
• 负责人: Edward Grew
• 金额: $ 3.31万
• 依托单位: University of Maine
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-05-01 至 1992-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8815863&HistoricalAwards=false
• 关键词: Metamorphic; Petrology; Central; Queen; Maud

This award supports a mineralogic, petrologic, and geochronologic study of the high-grade metamorphic rocks of Central Queen Land, a portion of the East Antarctic Precambrian shield. Field work will be done during the 1989-1990 austral season. The Principal Investigator has been designated the U.S. exchange scientist with the Soviet Antarctic Expedition. Research will focus on the metasediments: the pressure-temperature conditions of the different events and fluid conditions of metamorphism, in particular, the role of CO2 in granulite-facies metamorphism. Geochronologic studies should provide information on geologic history of the high-grade metamorphic rocks prior to emplacement of pegamite and granite 600 million years ago, so that central Queen Maud Land can be correlated not only with other parts of the East Antarctic Shield, but also with southern Africa.

该奖项支持了一项矿物学、岩石学和地质年代学研究，研究对象是南极东部前寒武纪地盾的一部分——中央女王地的高变质岩。实地工作将在1989-1990年的南方季节进行。首席研究员被指定为苏联南极考察队的美国交换科学家。重点研究变质沉积：不同变质事件的压力-温度条件和流体条件，特别是CO2在麻粒岩相变质作用中的作用。地质年代学研究应提供6亿年前辉长岩和花岗岩侵位之前的高变质岩地质历史信息，使莫德女王地中部不仅可以与南极东部盾体的其他部分进行对比，而且可以与南部非洲进行对比。